Chen Gen: 'graphene armor' or there will be a candidate for the next generation of solar cells battery

Solar photovoltaic webex: peroxide silicon is becoming a great prospects for development of solar cell material, but it has some durability problems. Recently, solar energy, energy and chemical engineering from the university of southern California school of PiaoHuiSheng professor and his research team developed a new kind of electrode, can greatly improve the perovskite solar cells ( PSCs） Stability, due to its low cost, high power conversion efficiency, will become the most promising candidate for the next generation of solar cells battery.

the team use of graphene as a protective layer ( GCEP） The copper grid embedded polyimide ( CEP） Thin film, developed a hybrid based on flexible metal gate electrodes platform, the film has high conductivity, excellent chemical stability and mechanical durability. This development also showed that graphene as a protective layer, to prevent the metal induced degradation and halide in the key role of diffusion between titanium electrode and calcium deposits.

then, the researchers placed the in between metal electrodes and peroxide. This film allows sunlight by peroxide, electronics, energy can be converted to and through GCEP back to the metal electrode, solar equipment, then spread to the storage and use.

test show that the new design of the energy conversion efficiency is almost as well as the ordinary solar cells, solar power network in China, there are & quot; Graphene armor & quot; Protection of the power conversion efficiency of solar cell is 16. 4%, and no armor solar cells is 17. 5%, and it also can keep the efficiency for a long time, can still maintain 97 after 1000 hours. The efficiency of more than 5%.

the study also proved that the metal electrodes and perovskite membrane inserted between protective layer can prevent the degradation of metal induced, and graphene, as this layer, can effectively inhibit and metal halide ion diffusion. In addition, the work for the design of mechanical and chemical properties in the PSCs stable without ITO metal auxiliary TCE platform provides an effective strategy.

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this paper statistics the September to today issued a total of 2. 85 gw pv power plant EPC and 1. 9 gw component bid opening information. Among them, the EPC project owner units is given priority to with soe/state, this also reflected from the side, in the project bidding and parity, solar equipment, state-owned enterprises have become the absolute main force. Specifically, CGNPC in development of 410 mw, 603 mw, guangzhou energy saving 220 mw, 345 mw, jin can group the people vote for 200 mw, 190 mw hubei energy group, huaneng 180 mw

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